Celtics go to double OT to edge Mavs, 117-115
Rondo finished with 16 points and 15 assists to go along with a career-high 53 minutes for the Celtics, who have won four consecutive home games.
O.J. Mayo scored 18 of his 24 points after halftime to lead seven players in double digits for the Mavericks, who saw their three-game winning streak come to an end.
Boston had the final possessions in both regulation and the first overtime, but Rondo and Pierce saw their respective last-second shots fall short.
Pierce made amends by drilling a 3-pointer on the Celtics' first possession of the second overtime. The veteran calmly sank five free throws in the session to seal the win.
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GAME NOTEBOOK: Celtics G Jason Terry played against his former team for the first time since signing a three-year deal in the offseason. Terry, who finished with 10 points, competed with the Mavericks for eight campaigns. ... Wednesday's game was just the second one to go into overtime between the teams. The first came on Dec. 30, 1983, when Hall of Famer Larry Bird scored 36 points in a 114-109 Boston win. ... Dallas F Shawn Marion returned following a two-game absence with a strained groin. He finished with 16 points and 11 rebounds...